exam
Maths Puzzle
Numerical Ability
6< x-6< 8
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exam Other Question
Perform the indicated operation
-2a^2/3a^2 times 20a/15a^3
sheila practiced 1 1/2 hours on monday, 3 3/4 hours on Tuesday, and 2 1/4 hours on Wed. What is the total number of hours that she practiced?
I got down to 30/4 = 7 2/4. But can I reduce it to 8 1/2 ?